Yuri da Silva Villas Boas, Security Analysis Developer in Florianópolis - State of Santa Catarina, Brazil
Yuri da Silva Villas Boas

Security Analysis Developer in Florianópolis - State of Santa Catarina, Brazil

Member since April 24, 2016
Yuri graduated with a bachelor's degree in applied mathematics, with an emphasis in finance and statistics, from the Federal University of Rio de Janeiro, Brazil. He has considerable work experience in design and verification of protocols, C++ and a good background in mathematics, statistics, and physics. Yuri has a great interest in complexity, cryptology, and automated theorem proving and has developed SRVB cryptosystems.
Yuri is now available for hire



Florianópolis - State of Santa Catarina, Brazil



Preferred Environment

Vim Text Editor, Linux

The most amazing...

...works I've done are a knapsack-based asymmetric cryptosystem and a ceremony for peer-to-peer primary authentication.


  • Information Security Analyst

    2018 - PRESENT
    • Made a viability assessment and quantitative comparative discussion of the adamant-based messenger app.
    • Suggested an original ceremony for second device synchronization and activation.
    • Wrote a lay person-accessible article on Kerckhoff's Principle.
    • Made significant improvements to the security and usability of password interfaces.
    • Made a schematic go-to diagram for determining the primary or secondary authentication protocols to be chosen from.
    • Authored an original knapsack based public-key cryptosystem.
    • Revised and corrected several corporate advertisements and articles.
    • Became the go-to person in the company for questions on information security.
    Technologies: Security Analysis, Security Design, Cryptography
  • Software Analyst

    2016 - 2016
    Brazil National Institute of Pure and Applied Mathematics
    • Created documentation in Latex for software written in R by F. Macias and his adviser professor, Dr. Jorge P Zubelli.
    • Helped research and provide analysis for a thesis on the topic of the Optimization of Strategies of Liquidation of Options Portfolios. The thesis subject can be viewed as considering different approaches for a specific optimal stop problem.
    Technologies: LaTeX
  • Programmer

    2014 - 2014
    Federal University of Rio de Janeiro
    • Developed new classes for a C++ simulation API by DEM Solutions, used in the Laboratory of Mining Technology (LTM) of UFRJ. In the Laboratory, the API is used to simulate milling in an attempt to energetically optimize this process.(http://www.edemsimulation.com/).
    Technologies: C++
  • Programmer

    2012 - 2013
    Federal University of Rio de Janeiro
    • Helped to develop a piece of software in C++ for the Mathematics Institute. The goal was to calculate the tau function in order to investigate the integer tau conjecture, an important conjecture in the field of Complexity (See "Complexity and Real Computation" - Blum et al.). My program calculated the inverse image of the Tau Function through depth-first search. The entire project was overseen by professor Gregório M. Muñoz.
    • Added functionality for parallelization with Open MPI (a distributed memory architecture for parallelization).
    • Optimized performance by working with GMP (GNU Multiple Precision), a library for arbitrary precision to express large integers.
    Technologies: GMP, Open MPI, C++
  • Programmer

    2010 - 2011
    Federal University of Santa Catarina
    • Developed C++ software in the Organic Opto-electronics and Anisotropic Systems Laboratory. The software has two functionalities - to calculate Interface Width and Height-Height Correlation of surfaces. (References: Marta Elisa Rosso Dotto "Universality of Scale Laws on Chemically Attacked Surfaces http://unicamp.sibi.usp.br/handle/SBURI/42157).
    • Delivered a functional piece of software to the lab used daily by the team. This accomplishment is further supported by the fact that I had no knowledge of programming when starting the project.
    Technologies: C++


  • SRVB Cryptography

    Asymmetric cryptography conceived by Professor Daniel Santana Rocha (IMPA) and Yuri da Silva Villas Boas (UFRJ).

    Not yet released.

  • Getting Started with the SRVB Cryptosystem (Publication)
    This article will give you an introduction to the principles behind public-key cryptosystems and introduce you to the Santana Rocha-Villas Boas (SRVB) cryptosystem, developed by the author of the article and prof. Daniel Santana Rocha. The algorithm authors are making a campaign that includes a financial reward to anyone who manages to crack the code.


  • Languages

    C++, Python
  • Tools

    Sublime Text, Vim Text Editor, Geany, LaTeX, Git
  • Paradigms

  • Industry Expertise

    IT Security
  • Other

    Cryptography, Information Security, Security Analysis, Security Design, Command Line Interface (CLI), Cryptocurrency
  • Libraries/APIs

    GMP, Open MPI
  • Platforms

    Linux Mint, Linux


  • Bachelor's degree in Applied Mathematics
    2012 - 2015
    Federal University of Rio de Janeiro - Rio de Janeiro, Brazil

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